How to create a new list from an existing list?

Question

I have a list

List<Student> class Student{ public string FirstName { get; set; } public string LastName { get; set; } public string School { get; set; } } 

I want to use the above list and create or populate this data in

 List<Person> class Person{ public string FirstName { get; set; } public string LastName { get; set; } } 

Help me..

Thanx

Answer 1

That should do the trick

 List<Person> persons = students.Select(student => new Person {FirstName = student.FirstName, LastName = student.LastName}).ToList(); 

Answer 2

Perhaps the simplest solution is to inherit the Student from the Person (the student is a person).

This way you do not need to completely copy / convert the list.

The result will be something like (done without an IDE):

List

 public class Person{ public string FirstName { get; set; } public string LastName { get; set; } } class Student : Person{ public string School { get; set; } } List<Student> ... List<Person> ... 

Answer 3

If there is no explicit inheritance between Student and Person , you can use projection:

 List<Student> ls = ...; List<Person> lp = ls.Select( student => new Person() { FirstName = student.FirstName, LastName = student.LastName } ); 

Answer 4

Let's say that

 List<Student> k= new List<Student>(); //add some students here List<Person> p= k.select(s=>new Person() { FirstName = student.FirstName, LastName = student.LastName }); 

Answer 5

Keep the person class as is.

 class Person { public string FirstName { get; set; } public string LastName { get; set; } } 

Create a Student class from Person and add the School property.

 class Student : Person { public string School { get; set; } } 

Now you can add Student to the Person s list.

 var persons = new List<Person>(); persons.Add(new Student()); 

Answer 6

You can fill in the data in another list as follows:

  listPerson = (from student in listStudent select new Person { FirstName = student.FirstName, LastName = student.LastName }).ToList<Person>();